When I'm training regularly, my spinning side kicks knock it over easy if I really hit it. I can also knock it over with my basic side kicks, if I try.

That being said, normal punch and kick combos get it to wobble and scoot a bit on the flooring I have, but it doesn't fall over. I would say that it's by far the most stable of the freestanding bags that I've used (and I've used several.)

Seriously, if you want to practice power without the inconvenience of a bag swinging wildly or falling over, buy a kicking shield and have a partner hold it. The T2 is definitely the best you can do with a freestanding bag._________________5th Geup Jidokwan Tae Kwon Do/Hap Ki Do